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(parent: e2bf372) | patch
drm/amdgpu: Fix buffer overflow in INFO ioctl
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 25 Aug 2020 15:43:45 +0000 (11:43 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 26 Aug 2020 19:45:51 +0000 (15:45 -0400)
commitb5b97cab55eb71daba3283c8b1d2cce456d511a1
tree84d8c39d26ada4d6cd32db4eaa58b4bee0b86ffatree | snapshot
parente2bf3723db563457c0abe4eaeedac25bbbbd1d76commit | diff
drm/amdgpu: Fix buffer overflow in INFO ioctl

The values for "se_num" and "sh_num" come from the user in the ioctl.
They can be in the 0-255 range but if they're more than
AMDGPU_GFX_MAX_SE (4) or AMDGPU_GFX_MAX_SH_PER_SE (2) then it results in
an out of bounds read.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c diff | blob | history
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